X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Frtmpproto.c;h=53d912e3c6c17a16e6391273a71cca9602bad533;hb=2215c39e94e01f57b3191a29e0e51d7e230daf49;hp=296cb7e88ed2104c8f17370ca52844e2d344f692;hpb=5e9ad75985a77efe1ab4cc15056c8e74b152aa3b;p=ffmpeg diff --git a/libavformat/rtmpproto.c b/libavformat/rtmpproto.c index 296cb7e88ed..53d912e3c6c 100644 --- a/libavformat/rtmpproto.c +++ b/libavformat/rtmpproto.c @@ -2,54 +2,56 @@ * RTMP network protocol * Copyright (c) 2009 Kostya Shishkov * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * FFmpeg is distributed in the hope that it will be useful, + * Libav is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** - * @file libavformat/rtmpproto.c + * @file * RTMP protocol */ #include "libavcodec/bytestream.h" #include "libavutil/avstring.h" +#include "libavutil/intfloat.h" #include "libavutil/lfg.h" #include "libavutil/sha.h" #include "avformat.h" +#include "internal.h" #include "network.h" #include "flv.h" #include "rtmp.h" #include "rtmppkt.h" +#include "url.h" -/* we can't use av_log() with URLContext yet... */ -#if LIBAVFORMAT_VERSION_MAJOR < 53 -#define LOG_CONTEXT NULL -#else -#define LOG_CONTEXT s -#endif +//#define DEBUG /** RTMP protocol handler state */ typedef enum { STATE_START, ///< client has not done anything yet STATE_HANDSHAKED, ///< client has performed handshake + STATE_RELEASING, ///< client releasing stream before publish it (for output) + STATE_FCPUBLISH, ///< client FCPublishing stream (for output) STATE_CONNECTING, ///< client connected to server successfully STATE_READY, ///< client has sent all needed commands and waits for server reply STATE_PLAYING, ///< client has started receiving multimedia data from server + STATE_PUBLISHING, ///< client has started sending multimedia data to server (for output) + STATE_STOPPED, ///< the broadcast has been stopped } ClientState; /** protocol handler context */ @@ -65,6 +67,15 @@ typedef struct RTMPContext { uint8_t* flv_data; ///< buffer with data for demuxer int flv_size; ///< current buffer size int flv_off; ///< number of bytes read from current buffer + RTMPPacket out_pkt; ///< rtmp packet, created from flv a/v or metadata (for output) + uint32_t client_report_size; ///< number of bytes after which client should report to server + uint32_t bytes_read; ///< number of bytes read from server + uint32_t last_bytes_read; ///< number of bytes read last reported to server + int skip_bytes; ///< number of bytes to skip from the input FLV stream in the next write call + uint8_t flv_header[11]; ///< partial incoming flv packet header + int flv_header_bytes; ///< number of initialized bytes in flv_header + int nb_invokes; ///< keeps track of invoke messages + int create_stream_invoke; ///< invoke id for the create stream command } RTMPContext; #define PLAYER_KEY_OPEN_PART_LEN 30 ///< length of partial key used for first client digest signing @@ -91,50 +102,128 @@ static const uint8_t rtmp_server_key[] = { }; /** - * Generates 'connect' call and sends it to the server. + * Generate 'connect' call and send it to the server. */ static void gen_connect(URLContext *s, RTMPContext *rt, const char *proto, const char *host, int port) { RTMPPacket pkt; - uint8_t ver[32], *p; + uint8_t ver[64], *p; char tcurl[512]; - ff_rtmp_packet_create(&pkt, RTMP_VIDEO_CHANNEL, RTMP_PT_INVOKE, 0, 4096); + ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0, 4096); p = pkt.data; - snprintf(tcurl, sizeof(tcurl), "%s://%s:%d/%s", proto, host, port, rt->app); + ff_url_join(tcurl, sizeof(tcurl), proto, NULL, host, port, "/%s", rt->app); ff_amf_write_string(&p, "connect"); - ff_amf_write_number(&p, 1.0); + ff_amf_write_number(&p, ++rt->nb_invokes); ff_amf_write_object_start(&p); ff_amf_write_field_name(&p, "app"); ff_amf_write_string(&p, rt->app); - snprintf(ver, sizeof(ver), "%s %d,%d,%d,%d", RTMP_CLIENT_PLATFORM, RTMP_CLIENT_VER1, - RTMP_CLIENT_VER2, RTMP_CLIENT_VER3, RTMP_CLIENT_VER4); + if (rt->is_input) { + snprintf(ver, sizeof(ver), "%s %d,%d,%d,%d", RTMP_CLIENT_PLATFORM, RTMP_CLIENT_VER1, + RTMP_CLIENT_VER2, RTMP_CLIENT_VER3, RTMP_CLIENT_VER4); + } else { + snprintf(ver, sizeof(ver), "FMLE/3.0 (compatible; %s)", LIBAVFORMAT_IDENT); + ff_amf_write_field_name(&p, "type"); + ff_amf_write_string(&p, "nonprivate"); + } ff_amf_write_field_name(&p, "flashVer"); ff_amf_write_string(&p, ver); ff_amf_write_field_name(&p, "tcUrl"); ff_amf_write_string(&p, tcurl); - ff_amf_write_field_name(&p, "fpad"); - ff_amf_write_bool(&p, 0); - ff_amf_write_field_name(&p, "capabilities"); - ff_amf_write_number(&p, 15.0); - ff_amf_write_field_name(&p, "audioCodecs"); - ff_amf_write_number(&p, 1639.0); - ff_amf_write_field_name(&p, "videoCodecs"); - ff_amf_write_number(&p, 252.0); - ff_amf_write_field_name(&p, "videoFunction"); - ff_amf_write_number(&p, 1.0); + if (rt->is_input) { + ff_amf_write_field_name(&p, "fpad"); + ff_amf_write_bool(&p, 0); + ff_amf_write_field_name(&p, "capabilities"); + ff_amf_write_number(&p, 15.0); + ff_amf_write_field_name(&p, "audioCodecs"); + ff_amf_write_number(&p, 1639.0); + ff_amf_write_field_name(&p, "videoCodecs"); + ff_amf_write_number(&p, 252.0); + ff_amf_write_field_name(&p, "videoFunction"); + ff_amf_write_number(&p, 1.0); + } ff_amf_write_object_end(&p); pkt.data_size = p - pkt.data; ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]); + ff_rtmp_packet_destroy(&pkt); +} + +/** + * Generate 'releaseStream' call and send it to the server. It should make + * the server release some channel for media streams. + */ +static void gen_release_stream(URLContext *s, RTMPContext *rt) +{ + RTMPPacket pkt; + uint8_t *p; + + ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0, + 29 + strlen(rt->playpath)); + + av_log(s, AV_LOG_DEBUG, "Releasing stream...\n"); + p = pkt.data; + ff_amf_write_string(&p, "releaseStream"); + ff_amf_write_number(&p, ++rt->nb_invokes); + ff_amf_write_null(&p); + ff_amf_write_string(&p, rt->playpath); + + ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]); + ff_rtmp_packet_destroy(&pkt); +} + +/** + * Generate 'FCPublish' call and send it to the server. It should make + * the server preapare for receiving media streams. + */ +static void gen_fcpublish_stream(URLContext *s, RTMPContext *rt) +{ + RTMPPacket pkt; + uint8_t *p; + + ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0, + 25 + strlen(rt->playpath)); + + av_log(s, AV_LOG_DEBUG, "FCPublish stream...\n"); + p = pkt.data; + ff_amf_write_string(&p, "FCPublish"); + ff_amf_write_number(&p, ++rt->nb_invokes); + ff_amf_write_null(&p); + ff_amf_write_string(&p, rt->playpath); + + ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]); + ff_rtmp_packet_destroy(&pkt); +} + +/** + * Generate 'FCUnpublish' call and send it to the server. It should make + * the server destroy stream. + */ +static void gen_fcunpublish_stream(URLContext *s, RTMPContext *rt) +{ + RTMPPacket pkt; + uint8_t *p; + + ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0, + 27 + strlen(rt->playpath)); + + av_log(s, AV_LOG_DEBUG, "UnPublishing stream...\n"); + p = pkt.data; + ff_amf_write_string(&p, "FCUnpublish"); + ff_amf_write_number(&p, ++rt->nb_invokes); + ff_amf_write_null(&p); + ff_amf_write_string(&p, rt->playpath); + + ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]); + ff_rtmp_packet_destroy(&pkt); } /** - * Generates 'createStream' call and sends it to the server. It should make + * Generate 'createStream' call and send it to the server. It should make * the server allocate some channel for media streams. */ static void gen_create_stream(URLContext *s, RTMPContext *rt) @@ -142,20 +231,44 @@ static void gen_create_stream(URLContext *s, RTMPContext *rt) RTMPPacket pkt; uint8_t *p; - av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Creating stream...\n"); - ff_rtmp_packet_create(&pkt, RTMP_VIDEO_CHANNEL, RTMP_PT_INVOKE, 0, 25); + av_log(s, AV_LOG_DEBUG, "Creating stream...\n"); + ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0, 25); p = pkt.data; ff_amf_write_string(&p, "createStream"); - ff_amf_write_number(&p, 3.0); + ff_amf_write_number(&p, ++rt->nb_invokes); + ff_amf_write_null(&p); + rt->create_stream_invoke = rt->nb_invokes; + + ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]); + ff_rtmp_packet_destroy(&pkt); +} + + +/** + * Generate 'deleteStream' call and send it to the server. It should make + * the server remove some channel for media streams. + */ +static void gen_delete_stream(URLContext *s, RTMPContext *rt) +{ + RTMPPacket pkt; + uint8_t *p; + + av_log(s, AV_LOG_DEBUG, "Deleting stream...\n"); + ff_rtmp_packet_create(&pkt, RTMP_SYSTEM_CHANNEL, RTMP_PT_INVOKE, 0, 34); + + p = pkt.data; + ff_amf_write_string(&p, "deleteStream"); + ff_amf_write_number(&p, ++rt->nb_invokes); ff_amf_write_null(&p); + ff_amf_write_number(&p, rt->main_channel_id); ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]); ff_rtmp_packet_destroy(&pkt); } /** - * Generates 'play' call and sends it to the server, then pings the server + * Generate 'play' call and send it to the server, then ping the server * to start actual playing. */ static void gen_play(URLContext *s, RTMPContext *rt) @@ -163,14 +276,14 @@ static void gen_play(URLContext *s, RTMPContext *rt) RTMPPacket pkt; uint8_t *p; - av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Sending play command for '%s'\n", rt->playpath); + av_log(s, AV_LOG_DEBUG, "Sending play command for '%s'\n", rt->playpath); ff_rtmp_packet_create(&pkt, RTMP_VIDEO_CHANNEL, RTMP_PT_INVOKE, 0, 20 + strlen(rt->playpath)); pkt.extra = rt->main_channel_id; p = pkt.data; ff_amf_write_string(&p, "play"); - ff_amf_write_number(&p, 0.0); + ff_amf_write_number(&p, ++rt->nb_invokes); ff_amf_write_null(&p); ff_amf_write_string(&p, rt->playpath); @@ -190,7 +303,31 @@ static void gen_play(URLContext *s, RTMPContext *rt) } /** - * Generates ping reply and sends it to the server. + * Generate 'publish' call and send it to the server. + */ +static void gen_publish(URLContext *s, RTMPContext *rt) +{ + RTMPPacket pkt; + uint8_t *p; + + av_log(s, AV_LOG_DEBUG, "Sending publish command for '%s'\n", rt->playpath); + ff_rtmp_packet_create(&pkt, RTMP_SOURCE_CHANNEL, RTMP_PT_INVOKE, 0, + 30 + strlen(rt->playpath)); + pkt.extra = rt->main_channel_id; + + p = pkt.data; + ff_amf_write_string(&p, "publish"); + ff_amf_write_number(&p, ++rt->nb_invokes); + ff_amf_write_null(&p); + ff_amf_write_string(&p, rt->playpath); + ff_amf_write_string(&p, "live"); + + ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]); + ff_rtmp_packet_destroy(&pkt); +} + +/** + * Generate ping reply and send it to the server. */ static void gen_pong(URLContext *s, RTMPContext *rt, RTMPPacket *ppkt) { @@ -200,7 +337,22 @@ static void gen_pong(URLContext *s, RTMPContext *rt, RTMPPacket *ppkt) ff_rtmp_packet_create(&pkt, RTMP_NETWORK_CHANNEL, RTMP_PT_PING, ppkt->timestamp + 1, 6); p = pkt.data; bytestream_put_be16(&p, 7); - bytestream_put_be32(&p, AV_RB32(ppkt->data+2) + 1); + bytestream_put_be32(&p, AV_RB32(ppkt->data+2)); + ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]); + ff_rtmp_packet_destroy(&pkt); +} + +/** + * Generate report on bytes read so far and send it to the server. + */ +static void gen_bytes_read(URLContext *s, RTMPContext *rt, uint32_t ts) +{ + RTMPPacket pkt; + uint8_t *p; + + ff_rtmp_packet_create(&pkt, RTMP_NETWORK_CHANNEL, RTMP_PT_BYTES_READ, ts, 4); + p = pkt.data; + bytestream_put_be32(&p, rt->bytes_read); ff_rtmp_packet_write(rt->stream, &pkt, rt->chunk_size, rt->prev_pkt[1]); ff_rtmp_packet_destroy(&pkt); } @@ -210,7 +362,7 @@ static void gen_pong(URLContext *s, RTMPContext *rt, RTMPPacket *ppkt) #define HMAC_OPAD_VAL 0x5C /** - * Calculates HMAC-SHA2 digest for RTMP handshake packets. + * Calculate HMAC-SHA2 digest for RTMP handshake packets. * * @param src input buffer * @param len input buffer length (should be 1536) @@ -259,7 +411,7 @@ static void rtmp_calc_digest(const uint8_t *src, int len, int gap, } /** - * Puts HMAC-SHA2 digest of packet data (except for the bytes where this digest + * Put HMAC-SHA2 digest of packet data (except for the bytes where this digest * will be stored) into that packet. * * @param buf handshake data (1536 bytes) @@ -280,7 +432,7 @@ static int rtmp_handshake_imprint_with_digest(uint8_t *buf) } /** - * Verifies that the received server response has the expected digest value. + * Verify that the received server response has the expected digest value. * * @param buf handshake data received from the server (1536 bytes) * @param off position to search digest offset from @@ -304,7 +456,7 @@ static int rtmp_validate_digest(uint8_t *buf, int off) } /** - * Performs handshake with the server by means of exchanging pseudorandom data + * Perform handshake with the server by means of exchanging pseudorandom data * signed with HMAC-SHA2 digest. * * @return 0 if handshake succeeds, negative value otherwise @@ -326,7 +478,7 @@ static int rtmp_handshake(URLContext *s, RTMPContext *rt) int server_pos, client_pos; uint8_t digest[32]; - av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Handshaking...\n"); + av_log(s, AV_LOG_DEBUG, "Handshaking...\n"); av_lfg_init(&rnd, 0xDEADC0DE); // generate handshake packet - 1536 bytes of pseudorandom data @@ -334,57 +486,62 @@ static int rtmp_handshake(URLContext *s, RTMPContext *rt) tosend[i] = av_lfg_get(&rnd) >> 24; client_pos = rtmp_handshake_imprint_with_digest(tosend + 1); - url_write(rt->stream, tosend, RTMP_HANDSHAKE_PACKET_SIZE + 1); - i = url_read_complete(rt->stream, serverdata, RTMP_HANDSHAKE_PACKET_SIZE + 1); + ffurl_write(rt->stream, tosend, RTMP_HANDSHAKE_PACKET_SIZE + 1); + i = ffurl_read_complete(rt->stream, serverdata, RTMP_HANDSHAKE_PACKET_SIZE + 1); if (i != RTMP_HANDSHAKE_PACKET_SIZE + 1) { - av_log(LOG_CONTEXT, AV_LOG_ERROR, "Cannot read RTMP handshake response\n"); + av_log(s, AV_LOG_ERROR, "Cannot read RTMP handshake response\n"); return -1; } - i = url_read_complete(rt->stream, clientdata, RTMP_HANDSHAKE_PACKET_SIZE); + i = ffurl_read_complete(rt->stream, clientdata, RTMP_HANDSHAKE_PACKET_SIZE); if (i != RTMP_HANDSHAKE_PACKET_SIZE) { - av_log(LOG_CONTEXT, AV_LOG_ERROR, "Cannot read RTMP handshake response\n"); + av_log(s, AV_LOG_ERROR, "Cannot read RTMP handshake response\n"); return -1; } - av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Server version %d.%d.%d.%d\n", + av_log(s, AV_LOG_DEBUG, "Server version %d.%d.%d.%d\n", serverdata[5], serverdata[6], serverdata[7], serverdata[8]); - server_pos = rtmp_validate_digest(serverdata + 1, 772); - if (!server_pos) { - server_pos = rtmp_validate_digest(serverdata + 1, 8); + if (rt->is_input && serverdata[5] >= 3) { + server_pos = rtmp_validate_digest(serverdata + 1, 772); if (!server_pos) { - av_log(LOG_CONTEXT, AV_LOG_ERROR, "Server response validating failed\n"); + server_pos = rtmp_validate_digest(serverdata + 1, 8); + if (!server_pos) { + av_log(s, AV_LOG_ERROR, "Server response validating failed\n"); + return -1; + } + } + + rtmp_calc_digest(tosend + 1 + client_pos, 32, 0, + rtmp_server_key, sizeof(rtmp_server_key), + digest); + rtmp_calc_digest(clientdata, RTMP_HANDSHAKE_PACKET_SIZE-32, 0, + digest, 32, + digest); + if (memcmp(digest, clientdata + RTMP_HANDSHAKE_PACKET_SIZE - 32, 32)) { + av_log(s, AV_LOG_ERROR, "Signature mismatch\n"); return -1; } - } - rtmp_calc_digest(tosend + 1 + client_pos, 32, 0, - rtmp_server_key, sizeof(rtmp_server_key), - digest); - rtmp_calc_digest(clientdata, RTMP_HANDSHAKE_PACKET_SIZE-32, 0, - digest, 32, - digest); - if (memcmp(digest, clientdata + RTMP_HANDSHAKE_PACKET_SIZE - 32, 32)) { - av_log(LOG_CONTEXT, AV_LOG_ERROR, "Signature mismatch\n"); - return -1; + for (i = 0; i < RTMP_HANDSHAKE_PACKET_SIZE; i++) + tosend[i] = av_lfg_get(&rnd) >> 24; + rtmp_calc_digest(serverdata + 1 + server_pos, 32, 0, + rtmp_player_key, sizeof(rtmp_player_key), + digest); + rtmp_calc_digest(tosend, RTMP_HANDSHAKE_PACKET_SIZE - 32, 0, + digest, 32, + tosend + RTMP_HANDSHAKE_PACKET_SIZE - 32); + + // write reply back to the server + ffurl_write(rt->stream, tosend, RTMP_HANDSHAKE_PACKET_SIZE); + } else { + ffurl_write(rt->stream, serverdata+1, RTMP_HANDSHAKE_PACKET_SIZE); } - for (i = 0; i < RTMP_HANDSHAKE_PACKET_SIZE; i++) - tosend[i] = av_lfg_get(&rnd) >> 24; - rtmp_calc_digest(serverdata + 1 + server_pos, 32, 0, - rtmp_player_key, sizeof(rtmp_player_key), - digest); - rtmp_calc_digest(tosend, RTMP_HANDSHAKE_PACKET_SIZE - 32, 0, - digest, 32, - tosend + RTMP_HANDSHAKE_PACKET_SIZE - 32); - - // write reply back to the server - url_write(rt->stream, tosend, RTMP_HANDSHAKE_PACKET_SIZE); return 0; } /** - * Parses received packet and may perform some action depending on + * Parse received packet and possibly perform some action depending on * the packet contents. * @return 0 for no errors, negative values for serious errors which prevent * further communications, positive values for uncritical errors @@ -394,25 +551,41 @@ static int rtmp_parse_result(URLContext *s, RTMPContext *rt, RTMPPacket *pkt) int i, t; const uint8_t *data_end = pkt->data + pkt->data_size; +#ifdef DEBUG + ff_rtmp_packet_dump(s, pkt); +#endif + switch (pkt->type) { case RTMP_PT_CHUNK_SIZE: if (pkt->data_size != 4) { - av_log(LOG_CONTEXT, AV_LOG_ERROR, + av_log(s, AV_LOG_ERROR, "Chunk size change packet is not 4 bytes long (%d)\n", pkt->data_size); return -1; } + if (!rt->is_input) + ff_rtmp_packet_write(rt->stream, pkt, rt->chunk_size, rt->prev_pkt[1]); rt->chunk_size = AV_RB32(pkt->data); if (rt->chunk_size <= 0) { - av_log(LOG_CONTEXT, AV_LOG_ERROR, "Incorrect chunk size %d\n", rt->chunk_size); + av_log(s, AV_LOG_ERROR, "Incorrect chunk size %d\n", rt->chunk_size); return -1; } - av_log(LOG_CONTEXT, AV_LOG_DEBUG, "New chunk size = %d\n", rt->chunk_size); + av_log(s, AV_LOG_DEBUG, "New chunk size = %d\n", rt->chunk_size); break; case RTMP_PT_PING: t = AV_RB16(pkt->data); if (t == 6) gen_pong(s, rt, pkt); break; + case RTMP_PT_CLIENT_BW: + if (pkt->data_size < 4) { + av_log(s, AV_LOG_ERROR, + "Client bandwidth report packet is less than 4 bytes long (%d)\n", + pkt->data_size); + return -1; + } + av_log(s, AV_LOG_DEBUG, "Client bandwidth = %d\n", AV_RB32(pkt->data)); + rt->client_report_size = AV_RB32(pkt->data) >> 1; + break; case RTMP_PT_INVOKE: //TODO: check for the messages sent for wrong state? if (!memcmp(pkt->data, "\002\000\006_error", 9)) { @@ -420,29 +593,52 @@ static int rtmp_parse_result(URLContext *s, RTMPContext *rt, RTMPPacket *pkt) if (!ff_amf_get_field_value(pkt->data + 9, data_end, "description", tmpstr, sizeof(tmpstr))) - av_log(LOG_CONTEXT, AV_LOG_ERROR, "Server error: %s\n",tmpstr); + av_log(s, AV_LOG_ERROR, "Server error: %s\n",tmpstr); return -1; } else if (!memcmp(pkt->data, "\002\000\007_result", 10)) { switch (rt->state) { case STATE_HANDSHAKED: + if (!rt->is_input) { + gen_release_stream(s, rt); + gen_fcpublish_stream(s, rt); + rt->state = STATE_RELEASING; + } else { + rt->state = STATE_CONNECTING; + } gen_create_stream(s, rt); + break; + case STATE_FCPUBLISH: rt->state = STATE_CONNECTING; break; + case STATE_RELEASING: + rt->state = STATE_FCPUBLISH; + /* hack for Wowza Media Server, it does not send result for + * releaseStream and FCPublish calls */ + if (!pkt->data[10]) { + int pkt_id = av_int2double(AV_RB64(pkt->data + 11)); + if (pkt_id == rt->create_stream_invoke) + rt->state = STATE_CONNECTING; + } + if (rt->state != STATE_CONNECTING) + break; case STATE_CONNECTING: //extract a number from the result if (pkt->data[10] || pkt->data[19] != 5 || pkt->data[20]) { - av_log(LOG_CONTEXT, AV_LOG_WARNING, "Unexpected reply on connect()\n"); + av_log(s, AV_LOG_WARNING, "Unexpected reply on connect()\n"); + } else { + rt->main_channel_id = av_int2double(AV_RB64(pkt->data + 21)); + } + if (rt->is_input) { + gen_play(s, rt); } else { - rt->main_channel_id = (int) av_int2dbl(AV_RB64(pkt->data + 21)); + gen_publish(s, rt); } - gen_play(s, rt); rt->state = STATE_READY; break; } } else if (!memcmp(pkt->data, "\002\000\010onStatus", 11)) { const uint8_t* ptr = pkt->data + 11; uint8_t tmpstr[256]; - int t; for (i = 0; i < 2; i++) { t = ff_amf_tag_size(ptr, data_end); @@ -455,15 +651,15 @@ static int rtmp_parse_result(URLContext *s, RTMPContext *rt, RTMPPacket *pkt) if (!t && !strcmp(tmpstr, "error")) { if (!ff_amf_get_field_value(ptr, data_end, "description", tmpstr, sizeof(tmpstr))) - av_log(LOG_CONTEXT, AV_LOG_ERROR, "Server error: %s\n",tmpstr); + av_log(s, AV_LOG_ERROR, "Server error: %s\n",tmpstr); return -1; } t = ff_amf_get_field_value(ptr, data_end, "code", tmpstr, sizeof(tmpstr)); - if (!t && !strcmp(tmpstr, "NetStream.Play.Start")) { - rt->state = STATE_PLAYING; - return 0; - } + if (!t && !strcmp(tmpstr, "NetStream.Play.Start")) rt->state = STATE_PLAYING; + if (!t && !strcmp(tmpstr, "NetStream.Play.Stop")) rt->state = STATE_STOPPED; + if (!t && !strcmp(tmpstr, "NetStream.Play.UnpublishNotify")) rt->state = STATE_STOPPED; + if (!t && !strcmp(tmpstr, "NetStream.Publish.Start")) rt->state = STATE_PUBLISHING; } break; } @@ -471,7 +667,7 @@ static int rtmp_parse_result(URLContext *s, RTMPContext *rt, RTMPPacket *pkt) } /** - * Interacts with the server by receiving and sending RTMP packets until + * Interact with the server by receiving and sending RTMP packets until * there is some significant data (media data or expected status notification). * * @param s reading context @@ -485,35 +681,51 @@ static int get_packet(URLContext *s, int for_header) { RTMPContext *rt = s->priv_data; int ret; + uint8_t *p; + const uint8_t *next; + uint32_t data_size; + uint32_t ts, cts, pts=0; + + if (rt->state == STATE_STOPPED) + return AVERROR_EOF; - for(;;) { - RTMPPacket rpkt; + for (;;) { + RTMPPacket rpkt = { 0 }; if ((ret = ff_rtmp_packet_read(rt->stream, &rpkt, - rt->chunk_size, rt->prev_pkt[0])) != 0) { - if (ret > 0) { + rt->chunk_size, rt->prev_pkt[0])) <= 0) { + if (ret == 0) { return AVERROR(EAGAIN); } else { return AVERROR(EIO); } } + rt->bytes_read += ret; + if (rt->bytes_read > rt->last_bytes_read + rt->client_report_size) { + av_log(s, AV_LOG_DEBUG, "Sending bytes read report\n"); + gen_bytes_read(s, rt, rpkt.timestamp + 1); + rt->last_bytes_read = rt->bytes_read; + } ret = rtmp_parse_result(s, rt, &rpkt); if (ret < 0) {//serious error in current packet ff_rtmp_packet_destroy(&rpkt); return -1; } - if (for_header && rt->state == STATE_PLAYING) { + if (rt->state == STATE_STOPPED) { + ff_rtmp_packet_destroy(&rpkt); + return AVERROR_EOF; + } + if (for_header && (rt->state == STATE_PLAYING || rt->state == STATE_PUBLISHING)) { ff_rtmp_packet_destroy(&rpkt); return 0; } - if (!rpkt.data_size) { + if (!rpkt.data_size || !rt->is_input) { ff_rtmp_packet_destroy(&rpkt); continue; } if (rpkt.type == RTMP_PT_VIDEO || rpkt.type == RTMP_PT_AUDIO || (rpkt.type == RTMP_PT_NOTIFY && !memcmp("\002\000\012onMetaData", rpkt.data, 13))) { - uint8_t *p; - uint32_t ts = rpkt.timestamp; + ts = rpkt.timestamp; // generate packet header and put data into buffer for FLV demuxer rt->flv_off = 0; @@ -533,27 +745,52 @@ static int get_packet(URLContext *s, int for_header) rt->flv_off = 0; rt->flv_size = rpkt.data_size; rt->flv_data = av_realloc(rt->flv_data, rt->flv_size); + /* rewrite timestamps */ + next = rpkt.data; + ts = rpkt.timestamp; + while (next - rpkt.data < rpkt.data_size - 11) { + next++; + data_size = bytestream_get_be24(&next); + p=next; + cts = bytestream_get_be24(&next); + cts |= bytestream_get_byte(&next) << 24; + if (pts==0) + pts=cts; + ts += cts - pts; + pts = cts; + bytestream_put_be24(&p, ts); + bytestream_put_byte(&p, ts >> 24); + next += data_size + 3 + 4; + } memcpy(rt->flv_data, rpkt.data, rpkt.data_size); ff_rtmp_packet_destroy(&rpkt); return 0; } ff_rtmp_packet_destroy(&rpkt); } - return 0; } static int rtmp_close(URLContext *h) { RTMPContext *rt = h->priv_data; + if (!rt->is_input) { + rt->flv_data = NULL; + if (rt->out_pkt.data_size) + ff_rtmp_packet_destroy(&rt->out_pkt); + if (rt->state > STATE_FCPUBLISH) + gen_fcunpublish_stream(h, rt); + } + if (rt->state > STATE_HANDSHAKED) + gen_delete_stream(h, rt); + av_freep(&rt->flv_data); - url_close(rt->stream); - av_free(rt); + ffurl_close(rt->stream); return 0; } /** - * Opens RTMP connection and verifies that the stream can be played. + * Open RTMP connection and verify that the stream can be played. * * URL syntax: rtmp://server[:port][/app][/playpath] * where 'app' is first one or two directories in the path @@ -563,87 +800,91 @@ static int rtmp_close(URLContext *h) */ static int rtmp_open(URLContext *s, const char *uri, int flags) { - RTMPContext *rt; + RTMPContext *rt = s->priv_data; char proto[8], hostname[256], path[1024], *fname; uint8_t buf[2048]; int port; int ret; - rt = av_mallocz(sizeof(RTMPContext)); - if (!rt) - return AVERROR(ENOMEM); - s->priv_data = rt; - rt->is_input = !(flags & URL_WRONLY); + rt->is_input = !(flags & AVIO_FLAG_WRITE); - url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname), &port, - path, sizeof(path), s->filename); + av_url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname), &port, + path, sizeof(path), s->filename); if (port < 0) port = RTMP_DEFAULT_PORT; - snprintf(buf, sizeof(buf), "tcp://%s:%d", hostname, port); + ff_url_join(buf, sizeof(buf), "tcp", NULL, hostname, port, NULL); - if (url_open(&rt->stream, buf, URL_RDWR) < 0) { - av_log(LOG_CONTEXT, AV_LOG_ERROR, "Cannot open connection %s\n", buf); + if (ffurl_open(&rt->stream, buf, AVIO_FLAG_READ_WRITE, + &s->interrupt_callback, NULL) < 0) { + av_log(s , AV_LOG_ERROR, "Cannot open connection %s\n", buf); goto fail; } - if (!rt->is_input) { - av_log(LOG_CONTEXT, AV_LOG_ERROR, "RTMP output is not supported yet.\n"); + rt->state = STATE_START; + if (rtmp_handshake(s, rt)) goto fail; - } else { - rt->state = STATE_START; - if (rtmp_handshake(s, rt)) - return -1; - rt->chunk_size = 128; - rt->state = STATE_HANDSHAKED; - //extract "app" part from path - if (!strncmp(path, "/ondemand/", 10)) { - fname = path + 10; - memcpy(rt->app, "ondemand", 9); + rt->chunk_size = 128; + rt->state = STATE_HANDSHAKED; + //extract "app" part from path + if (!strncmp(path, "/ondemand/", 10)) { + fname = path + 10; + memcpy(rt->app, "ondemand", 9); + } else { + char *p = strchr(path + 1, '/'); + if (!p) { + fname = path + 1; + rt->app[0] = '\0'; } else { - char *p = strchr(path + 1, '/'); - if (!p) { - fname = path + 1; - rt->app[0] = '\0'; + char *c = strchr(p + 1, ':'); + fname = strchr(p + 1, '/'); + if (!fname || c < fname) { + fname = p + 1; + av_strlcpy(rt->app, path + 1, p - path); } else { - char *c = strchr(p + 1, ':'); - fname = strchr(p + 1, '/'); - if (!fname || c < fname) { - fname = p + 1; - av_strlcpy(rt->app, path + 1, p - path); - } else { - fname++; - av_strlcpy(rt->app, path + 1, fname - path - 1); - } + fname++; + av_strlcpy(rt->app, path + 1, fname - path - 1); } } - if (!strchr(fname, ':') && - (!strcmp(fname + strlen(fname) - 4, ".f4v") || - !strcmp(fname + strlen(fname) - 4, ".mp4"))) { - memcpy(rt->playpath, "mp4:", 5); - } else { - rt->playpath[0] = 0; - } - strncat(rt->playpath, fname, sizeof(rt->playpath) - 5); + } + if (!strchr(fname, ':') && + (!strcmp(fname + strlen(fname) - 4, ".f4v") || + !strcmp(fname + strlen(fname) - 4, ".mp4"))) { + memcpy(rt->playpath, "mp4:", 5); + } else { + rt->playpath[0] = 0; + } + strncat(rt->playpath, fname, sizeof(rt->playpath) - 5); + + rt->client_report_size = 1048576; + rt->bytes_read = 0; + rt->last_bytes_read = 0; + + av_log(s, AV_LOG_DEBUG, "Proto = %s, path = %s, app = %s, fname = %s\n", + proto, path, rt->app, rt->playpath); + gen_connect(s, rt, proto, hostname, port); - av_log(LOG_CONTEXT, AV_LOG_DEBUG, "Proto = %s, path = %s, app = %s, fname = %s\n", - proto, path, rt->app, rt->playpath); - gen_connect(s, rt, proto, hostname, port); + do { + ret = get_packet(s, 1); + } while (ret == EAGAIN); + if (ret < 0) + goto fail; - do { - ret = get_packet(s, 1); - } while (ret == EAGAIN); - if (ret < 0) - goto fail; + if (rt->is_input) { // generate FLV header for demuxer rt->flv_size = 13; rt->flv_data = av_realloc(rt->flv_data, rt->flv_size); rt->flv_off = 0; memcpy(rt->flv_data, "FLV\1\5\0\0\0\011\0\0\0\0", rt->flv_size); + } else { + rt->flv_size = 0; + rt->flv_data = NULL; + rt->flv_off = 0; + rt->skip_bytes = 13; } - s->max_packet_size = url_get_max_packet_size(rt->stream); + s->max_packet_size = rt->stream->max_packet_size; s->is_streamed = 1; return 0; @@ -671,6 +912,7 @@ static int rtmp_read(URLContext *s, uint8_t *buf, int size) buf += data_left; size -= data_left; rt->flv_off = rt->flv_size; + return data_left; } if ((ret = get_packet(s, 0)) < 0) return ret; @@ -678,16 +920,84 @@ static int rtmp_read(URLContext *s, uint8_t *buf, int size) return orig_size; } -static int rtmp_write(URLContext *h, uint8_t *buf, int size) +static int rtmp_write(URLContext *s, const uint8_t *buf, int size) { - return 0; + RTMPContext *rt = s->priv_data; + int size_temp = size; + int pktsize, pkttype; + uint32_t ts; + const uint8_t *buf_temp = buf; + + do { + if (rt->skip_bytes) { + int skip = FFMIN(rt->skip_bytes, size_temp); + buf_temp += skip; + size_temp -= skip; + rt->skip_bytes -= skip; + continue; + } + + if (rt->flv_header_bytes < 11) { + const uint8_t *header = rt->flv_header; + int copy = FFMIN(11 - rt->flv_header_bytes, size_temp); + bytestream_get_buffer(&buf_temp, rt->flv_header + rt->flv_header_bytes, copy); + rt->flv_header_bytes += copy; + size_temp -= copy; + if (rt->flv_header_bytes < 11) + break; + + pkttype = bytestream_get_byte(&header); + pktsize = bytestream_get_be24(&header); + ts = bytestream_get_be24(&header); + ts |= bytestream_get_byte(&header) << 24; + bytestream_get_be24(&header); + rt->flv_size = pktsize; + + //force 12bytes header + if (((pkttype == RTMP_PT_VIDEO || pkttype == RTMP_PT_AUDIO) && ts == 0) || + pkttype == RTMP_PT_NOTIFY) { + if (pkttype == RTMP_PT_NOTIFY) + pktsize += 16; + rt->prev_pkt[1][RTMP_SOURCE_CHANNEL].channel_id = 0; + } + + //this can be a big packet, it's better to send it right here + ff_rtmp_packet_create(&rt->out_pkt, RTMP_SOURCE_CHANNEL, pkttype, ts, pktsize); + rt->out_pkt.extra = rt->main_channel_id; + rt->flv_data = rt->out_pkt.data; + + if (pkttype == RTMP_PT_NOTIFY) + ff_amf_write_string(&rt->flv_data, "@setDataFrame"); + } + + if (rt->flv_size - rt->flv_off > size_temp) { + bytestream_get_buffer(&buf_temp, rt->flv_data + rt->flv_off, size_temp); + rt->flv_off += size_temp; + size_temp = 0; + } else { + bytestream_get_buffer(&buf_temp, rt->flv_data + rt->flv_off, rt->flv_size - rt->flv_off); + size_temp -= rt->flv_size - rt->flv_off; + rt->flv_off += rt->flv_size - rt->flv_off; + } + + if (rt->flv_off == rt->flv_size) { + rt->skip_bytes = 4; + + ff_rtmp_packet_write(rt->stream, &rt->out_pkt, rt->chunk_size, rt->prev_pkt[1]); + ff_rtmp_packet_destroy(&rt->out_pkt); + rt->flv_size = 0; + rt->flv_off = 0; + rt->flv_header_bytes = 0; + } + } while (buf_temp - buf < size); + return size; } -URLProtocol rtmp_protocol = { - "rtmp", - rtmp_open, - rtmp_read, - rtmp_write, - NULL, /* seek */ - rtmp_close, +URLProtocol ff_rtmp_protocol = { + .name = "rtmp", + .url_open = rtmp_open, + .url_read = rtmp_read, + .url_write = rtmp_write, + .url_close = rtmp_close, + .priv_data_size = sizeof(RTMPContext), };